我是Flex新手,无法理解事件。我认为事件是我想要用于我的情况。我有2个组件,addUser.mxml
和listUsers.mxml
。我从我的主应用程序中的ViewStack访问这些。当我加载listUsers.mxml
时,它通过HTTPService调用显示数据网格中当前用户的列表。当我使用addUser.mxml
上的表单添加用户时,我想在返回到该视图以显示新用户时刷新listUsers.mxml
中的数据网格。我用addEventListener
和dispatchEvent
尝试了几个不同的东西,但似乎无法让它工作。有人可以用这个逻辑帮助我吗?从动作更新外部Flex组件
-
评论的示例代码,我解析了非相对的东西。
的adduser这个样子的:
<mx:HTTPService id="httpService"
url="{'http://someurl.com'}"
useProxy="false"
method="POST"
fault="faultHandler()"
result="resultHandler(event)"
/>
public function addUser():void{
if(validateForm()){
params = {};
params['action'] = 'adduser';
params['firstName'] = firstName.text;
params['lastName'] = lastName.text;
params['email'] = email.text;
params['isActive'] = isActive.selected;
httpService.cancel();
httpService.addEventListener("result", addUserResult);
httpService.send(params);
}
}
public function addUserResult(event:ResultEvent):void{
var result:Object = event.result;
//reset fields if add user was successful
if(result.returnXML.action=='adduser'){
var m:String = result.returnXML.message.toString();
if(result.returnXML.status=='fail'){
Alert.show(m, null, Alert.OK, null, null, Application.application.IconError);
}
if(result.returnXML.status=='success'){
firstName.text = "";
lastName.text = "";
email.text = "";
isActive.selected = true;
Alert.show(m, null, Alert.OK, null, null, Application.application.IconSuccess);
}
}
}
<mx:Button id="addButton" label="Add" click="addUser();" />
listUsers看起来是这样的:
<mx:HTTPService id="httpListService"
url="{'http://someurl.com'}"
useProxy="false"
method="POST"
fault="faultHandler()"
result="resultHandler(event)"
/>
<mx:DataGrid id="dgUsers"
itemClick="dgClickEvent(event);"
width="85%"
maxHeight="500"
>
<mx:columns>
<mx:DataGridColumn headerText="First Name" dataField="fn" />
<mx:DataGridColumn headerText="Last Name" dataField="ln" />
<mx:DataGridColumn headerText="Email" dataField="email" />
<mx:DataGridColumn headerText="Active" dataField="active" />
</mx:columns>
</mx:DataGrid>
你可以张贴一些代码?很难知道如何帮助你解决具体的问题。 – bedwyr 2010-04-07 02:16:22
我在上面添加了一些代码,谢谢! – Scott 2010-04-07 13:29:57